Khai Tong Tan

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Three hundred patients with Diabetes Mellitus from 2 medical units in Singapore were screened for retinopathy over a 24 month period. Prevalence of retinopathy in this population was 38% with sight-threatening retinopathy in 17%. Risk factors associated with retinopathy included a longer duration of disease, the presence of hypertension, nephropathy and(More)
Symptomatic ventricular septal defects in infants who responded poorly to intensive medical therapy require surgical intervention. This paper aims to compare the results of the two stage approach of initial pulmonary artery banding followed by debanding and ventricular septal defect closure with primary intracardiac repair in infancy. Thirty-six infants(More)
The aim of this study was to determine the value of antenatal numerical assessment of foetal heart rate variation in the prediction of adverse perinatal outcome in patients undergoing prostaglandin induction of labour at term. Two hundred and seven patients who underwent prostaglandin cervical ripening after 37 weeks gestation for the indications of(More)
Four hundred and twenty-five patients underwent mitral valvotomy between 1960 and 1979, the majority by the closed method. Thirty-two patients required another operation for mitral restenosis. There was high incidence of reoperation after the 6th and 7th years (23.3%) and after the 9th and 10th years (26.4%) postoperatively. Sixteen patients (47%) with(More)
Over the last three decades there has been a world-wide decline in the incidence and severity of rheumatic fever and rheumatic heart disease, but the death rate in Singapore from chronic rheumatic heart disease has risen from 3.6 per 100,000 population in 1966 to 4.4 per 100,000 in 1977. Valvular lesions from rheumatic heart disease are very common, and(More)
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